EP 3098377 A1 20161130 - DOWNHOLE STEERING TOOL
Title (en)
DOWNHOLE STEERING TOOL
Title (de)
BOHRLOCH-LENKWERKZEUG
Title (fr)
OUTIL D'ORIENTATION POUR LE FOND DU PUITS
Publication
Application
Priority
- US 39934906 A 20060407
- EP 07719491 A 20070404
Abstract (en)
A steering tool for use in drilling a borehole, including a tubular housing (36), a tool actuating device (38) movably supported within the housing, a plurality of hydraulically actuated steering devices (40) circumferentially spaced about the housing, and a hydraulic control system (42) interposed between the tool actuating device and the steering devices for converting an actuating movement of the tool actuating device to independent actuation of the steering devices, the tool actuating device including a pendulum (60), where the actuating movement is a pivoting movement relative to the housing in order to maintain a vertical orientation of the pendulum.
IPC 8 full level
E21B 7/08 (2006.01); E21B 7/04 (2006.01); E21B 7/06 (2006.01)
CPC (source: EP NO US)
E21B 7/062 (2013.01 - EP NO US); E21B 7/068 (2013.01 - EP NO US); E21B 7/10 (2013.01 - EP NO US)
Citation (applicant)
- US 5168941 A 19921208 - KRUEGER VOLKER [DE], et al
- US 5603386 A 19970218 - WEBSTER DAVID W [GB]
- US 2075064 A 19370330 - SCHUMACHER JAMES H, et al
- US 2153680 A 19390411 - SCHUMACHER JAMES H, et al
- US 3141512 A 19640721 - FROHOCK GASKELL THOMAS, et al
- US 3243001 A 19660329 - VINCENT RENIC P
- US 3637032 A 19720125 - JETER JOHN D
- US RE29526 E 19780131
- US 5314030 A 19940524 - PETERSON CARL R [US], et al
Citation (search report)
- [XYI] US 2005150690 A1 20050714 - MORIARTY KEITH A [US]
- [Y] GB 867025 A 19610503 - BRITISH PETROLEUM CO, et al
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
US 2007235227 A1 20071011; US 7413034 B2 20080819; AU 2007236499 A1 20071018; AU 2007236499 B2 20110519; BR PI0710493 A2 20110816; CA 2647032 A1 20071018; CA 2647032 C 20120529; EP 2007964 A1 20081231; EP 2007964 A4 20110706; EP 2007964 B1 20170125; EP 3098377 A1 20161130; EP 3098377 B1 20171129; MX 2008012994 A 20081017; NO 20084692 L 20090106; NO 20180498 A1 20090106; NO 342610 B1 20180618; NO 344006 B1 20190812; WO 2007115397 A1 20071018
DOCDB simple family (application)
US 39934906 A 20060407; AU 2007236499 A 20070404; BR PI0710493 A 20070404; CA 2007000561 W 20070404; CA 2647032 A 20070404; EP 07719491 A 20070404; EP 16160305 A 20070404; MX 2008012994 A 20070404; NO 20084692 A 20081106; NO 20180498 A 20180412